Stamping-machine.



No. 657,603. g Patented Sept. ll, I900.

w. KRAEMER. STAMPING MACHINE. (Application filgd Jupe 2 2, 1900.) (No Model.) a5 Sheets-Sheet I.

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No. 657,603. v Patented Sept. ll, I900. W. KBAEMER.

STAMPING MACHINE.

(Annlicstion filed June 22, 1900.) 5 Shaets$heet a.

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No. 652,603; Patented Sept. ll, I900.

W. KBAEMER.

STAMPING'MACHINE.

(Application filed June 22, 1900.)

(No Model.) 5 Sheets-Sheet 4.

. 1 UNIT S,

PATENT ()FFICE.

WILLIAM KRAEMER, OF CHICAGO, ILLINOIS.

STAMPING- MACHINE.

srisofmonrroiv formingpart of Letters Patent No. 657,603, dated September 11, 1900.

Application filed June 22, 1900.

To all whom it may concern/.-

Be it known that 1, WILLIAM KRAEMER, a citizen of the United States, residing at Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Stamping Machines, of

p which the following is a specification.

This invention relates to improvements in a machine to be used for stamping or pressing comminuted particles or material in a plastic state into various forms to produce tablets, disks, small cakes, spheres, buttons, and analogous articles; and it consists in certain peculiarities of the construction, novel arrangement, and operation of the various parts thereof, as will be hereinafter more fully set forth and specifically claimed.

In order to enable others skilled in the art to which my invention pertains to make-and use the same, I will now proceed to describe it, referring to the accompanying drawings, in which- Figure 1 is a view in front elevation of the machine, showing the parts in position ready for use. Fig. 2 is a view in side elevation, showing the power-wheel broken away. Fig. 3 is a vertical central sectional view taken on line 3 3 of Fig. 1 looking inthe direction indicated by the arrows; Fig. 4 is a plan sectional view taken on line 4 4 ofFig. 1. Fig. 5 is a circumferentialsectional view taken on line 5 5 of Fig. 4. Fig. 6 is a bottom plan view of the matrix disk or plate. Fig. 7 is a detail view in elevation of a part of the upper portion of the supporting-frame, showing a mechanism for agitating the material in the feed-box. Fig. 8 is a view, partly in section and partly inelevation, of a portion of a lever employed for rotating the'matrix plate or disk. Fig. 9 is a rear view in elevation of the upper portion. of the machine. Fig. 10 is a bottom plan view of a modified form of the matrix plate or disk; and Fig. 11 is a view, partly in section and partly in elevation,of a portion of said disk, a part of the supportingtable, and a portion of the die-head.

The reference-numeral 15 represents the main or supporting frame, which may be made of any suitable size, form, and material, but is preferably of metal and ofsubstantially the shape shown in the drawings, and has a base 16, which may. rest on or be Serial No. 21,167. (No model.)

secured to the floor or other suitable support. Horizontally journaled on the rear portion of the frame 15, a little above its middle, is a main shaft 17, on one end of which is mounted a wheel 18, to which power may be applied the'wheel 18 in or out of gear by means of a.

lever 24, fulcrumed on the main frame, and a rod or link 25, connecting one end of said lever and the clutch.

v Keyed to the middle of the shaft 21 is an eccentric 26, surrounding which and movable therewith is another eccentric 27, which is provided with an extension or projection 28 to be used for shifting the position of the lastnamed eccentric when it is desired to regulate the stroke of the die-carrying plunger.

On the periphery of the eccentric 27 is located a clampingband 29, in the ends of which is located a screw 30, employed for securing said band by clamping the same on the outer eccentric. The band 29 is provided with a projection 31, rounded in its free portion, which projection oscillates in a suitable opening in the upper part of the plunger 32, which carries the dies 33 and ejector-heads 34, which dies and heads are arranged on an arc to correspond With that of the matrices in the matrix plate or disk 35, which is rotatably mounted on a vertical shaft 36, extending through the platform 37, which is suitably mounted on the pieces 38 on the lower front portion of the supporting-frame. The matrix plate or disk 35 is circular, as shown in Fig. 6 of the drawings, and has on its periphery a series of ratchet-teeth or notches 39, thepurpose of which will be presently explained. This plate or disk is provided with a number of openings or matrices 40, which may be of any desired shape, but in the present instance are shown as cylindrical and are arranged in a concentric circle to the shaft 36, on which the said disk or plate is mounted.

' Hinged to the lower surface of the disk 35 of any suitable shape anddesired material. Resting on the upper surface of thematr'ix plate or disk is a feed-box 45, the upper and lower ends of which areopen-to allow the into form to pass therethr'ough.

a spring-pressed lever 46, which is provided with a yoke 47 to engage pins or'projections 48 on the sides of the box. fulcrumed on a suitable support 49 on the front part of the platform 37 andIis'actuaTedby an expanding-spring 50, located under its outer end. Passing through the box is a; rock-shaft 51, which carries fingers 52 within the box, used to agitate the material andto prevent its clogging. Fixed on the roeksshaft 51 on each side of the feed-box 45is an angle lever 53, whose free end is provided: with a finger'54, which passes through a suitable;

. opening in a frame 55, secured to the'rear surface of the feed-box, so as to move verti;

cally thereon. To each side of the frame 55 their bottoms perforated, asshown in Fig. 40f

- the drawings. These boxes areconnected'to' the lower ends of funnel-shaped receptacles 57 by means of flexible tubes 58, which convey the powder from the receptacles .57totlne powder boxes. Located on theftop of. the

feed-box 45 and communicating therewithis a hopper 59, used for supplying the mate-,-

rial to the matrices. On one end of'theshafit 21 is mounted cam60, with whichimpinges a friction-roller 61:, carried by a'lever 62, fulcrumed on the-shaft 63, which isjonrnailed' on the-front portion of the main frame. Theroller 61 is held in contact with th'e-camf60 which is connected at-iits'lowerend' rby means of a link 66 to an arm 67 on the rock-shaft 51,

which connections and lever operate said shaft and the powder-boxes 56, soas to agi tate the material therein and to shake the I powder from said-powder-boxes into the mat rices. On the opposite end of the shaft 21 from that on w'hich the cam "is mounted-is awheel68, which carries a cam projection 69 to contact with anarmv 70lon therock-s-haft- 71, which is vertically supported on Fthe rear surface of the main frame. On the lower portion of the rock-shafti7l issecured a-n a'rm,

72., which carries a. brush 73, used forclea'n ing the dies 33. fPivotally secured to the wheel 68 is a link 74, which is 'a lso pivota'lly v connected to onearni of abell-crank lever 75,

a univers'al joint a link 77, which iszsimilarly recess-insaid: bar. material which is to be stamped or pressed This box is held in position on-thesaiddisk by meansof;

The lever 46 is connectedat its other end to one end of 'a bar 78;, whose. otherend is pivotally connected to the shaft 36, on which the matrix disk or plate is pivoted. By reference to Figs. land 8 of the drawings it will be seen that the bar 78 ,is ,formed withw an. elbow79, through which extends a pin 80, whichisnorm ally projected by means ofa spring 81, located in a suitable The pin 80 is employed "to engage the teeth or notches 39 on the matrix-disk, and in conjunction with the bar 78 and-its connections with theWheelGS-to turn said disk.

The plunger 32 carries the die-heads 33, as

well as the ejector-heads 34, which are provided with packing-rings 82, felt'orother I material, tolwipe or clean the matrices3through whichsaid' heads pass: Eachiof the-ejectorheads 34 isprovided with a pin or projection 83,;which pins are normally projected by means of springs 84, located in suitable openings in said heads.

In- Figs; 1=O-a nd 11 of the drawings I have shown a modification in the construction of thema-trix-disk which consists of a disk 85, having notches or ratchet-teeth 39 on itsperipherygas before, but provided on its lower surface with a circular channel 86 and'radial channels 87, extendingto the periphery ofthe disk. In this modification the. matrices'are arranged singly instead of in pairs; as in the first-described constructiomand, besides, the drop-dborsareomitted. By this construction the powder and material falling on. the platfor-111 37 will be removed therefrom through thechannels-BAand thns automatically cleaning said platform. s

From the. foregoing andrbyr-eference to the drawings it will be seen and: readily understood that by throwing the clutch 23 so as to engagethe clutch-face 22'onthe wheel 18 and applying'powerto said wheel the machine will be put in operation. The. shaft 21-wil1i be drivenby its gearingwith the shaft 17 and through the. medium of itsconnections with the feed-boxand powder-boxes will agitateor sha-kethe material'therein, so as to prevent the-former clogging, and will cause-the powder'to besifted fromthe powder-boxes into the; matrices before and after they havebeen .fi l led from -the feed-box 45, thus preventing the material; sticking, to the mat'riiceszor' dies. A further purpose of 'the'powder-boxes 56 is .to give the pieceor'cake a coating of difieren't colors. As the material passes from: the hopperxandfeed-box into the matrices of the matrix :plate .or disk .said disk'wi'll be turned on: its (pivot by means of the pin 80 on the bar 7 8 and its connections'with the -wheel 68-, so asuto iplace other empty matrices nnderJthe feed-box. and at thesametime place the filled ones in positionto receive the die-heads '33, whichwill compress the materialtothe desired form.. Asthe disk turns the matrices containing the stamped material will. be brought over the opening 42in theplatform and the door 411 under said. matniceswi1lidrop (see Fig. 5) and allow the ejector-heads to push the pieces from the molds, the springactuated pins 83 being used to remove the pieces from said heads should they stick thereto. The die-heads 33 and ejector-heads 34 are moved at the same time by the eccentrics 26 and 27 and their connections with the plunger 32, which operates in a vertical opening in the main frame. When it is desired to limit the stroke of the plunger, so as to make the cake or piece thick or thinner, the eccentric 27 may be t-urned'on the eccentric 26 by means of the arm 28 in the proper direction.

The brush 7 3 will be caused to wipe or clean the die-heads 33 by reason of the projection 69 contacting with the arm-7O on the rockshaft 71 in the operation of the machine.

Having thus fully described my invention, What I claim as new, and desire to secure by Letters Patent, is

1. In a stamping-machine, the combination of a main or supporting frame, with a matrix plate or disk rotatably mounted thereon, a feed-box communicating with the matrices thereof, a powder-box located near the feed- .box, and vertically movable thereon, and

means to intermittently rotate the matrixdisk and to agitate the material in the feedbox and to shake the powder-box, substantially as described.

2. In a stamping-machine, the combination of a main or -supporting frame, with a platform horizontally located thereon and having an opening, a matrix-disk rotatably mounted on said platform and having hinged doors below the matrices, a feed-box communicating with the matrices, a powder-box located near the feed-box and vertically movable thereon, and means to intermittently rotate the matrix-disk and to agitate the material in the feed-box and to shake the powder-box, substantially as described.

3. In a stamping-machine, thecombination with a main or supporting frame, of a matrixdisk rotatably mounted thereon, a feed-box communicating with the matrices thereof, a powder-box located near the feed-box, a plunger carrying a die-head and an ejector-head,

means to intermittently rotate the matrixdisk and to agitate the material in the feedbox and to shake the powder-box, and means to raise and lower the said plunger, substantially as described. r

4. Ina stamping-machine, the combination with a main or supporting frame, of a matrixdisk rotatably mounted thereon, a feed-box communicating with thematrices thereof, a powder-box located on each side of the feed box and each having a foraminous bottom, said powder-boxes being vertically movable, a rock-shaft transversely journaled in the feed-box and having fingers within the said box, levers rigid on the rock-shaft and con nected to' the powder-boxes, and means to intermittently rotate the matrix-disk and to operate the rock-shaft, substantially as de scribed.

5. In astamping-machine, the combination with a main or supporting frame, of two powder-receptacles thereon, two powder-boxes having foraminous bottoms and connected to said receptacles by means of flexibletubes, a rock-shaft journaled near the powder-boxes, levers or arms rigid on the rock-shaft'and connected to the powder-boxes, and means to operate the rock-shaft, substantially as described.

6. In a stamping-machine, the combination with the main frame, of a die-carrying plunger vertically movable thereon, a shaft horizontally journaled on the upper portion of the main frame, eccentric connections uniting said shaft and plunger, to raise and lower the same, a rock-shaft vertically journaled on the main frame and having at its upper end an arm, an arm secured to the lower portion of the rock-shaft and having a wiper for the dies, and a wheel mounted on the horizontal shaft, and provided with a projection WILLIAM KRAEMER.

Witnesses:

GEORGE SOHWARZBEOK, CHAS. O. TILLMAN. 

